As our concern for what we put on our skin grows, it is important to understand the differences between mineral and chemical sunscreens. Mineral sunscreens contain zinc oxide and titanium dioxide, which create a physical barrier on the skin’s surface that reflects UVA and UVB rays.

Chemical sunscreens, on the other hand, contain synthetic ingredients that absorb UVA and UVB rays before they penetrate deep into the skin. The most common chemical sunscreen ingredients to look for are oxybenzone, octinoxate, homosalate, octisalate, and octocrylene.

While mineral sunscreens can leave a white or purple film in the skin, chemical sunscreens tend to leave a sheen finish. People with sensitive skin or rosacea may find chemical sunscreens to be more irritating and may experience contact dermatitis. Therefore, it is recommended to use mineral sunscreens if you have these conditions. Regardless of which type of sunscreen you choose, it is important to use it consistently to protect your skin from sun damage.